A universal instant messaging (IM) program
See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.
A smaller, faster, and easier IM client
Miranda IM is an open source, multi-protocol instant messaging client designed to be very light on system resources, extremely fast and customizable. A powerful plugin-based architecture make Miranda IM one of the most flexible clients on the planet.
Encryption plugin for Pidgin, providing up to 4096 bit RSA encryption using the NSS crypto library from Mozilla. Keys are automatically transmitted and stored, making it very easy to use, but also resistant to man-in-the-middle attacks.
Licq is an ICQ/AIM clone written fully in C++. It uses an extensive plugin system to manage many different functions including the MSN protocol. The main GUI is written using the Qt widget set.
Bot Sentry is a Pidgin (libpurple) plugin to prevent Instant Message (IM) spam. It allows you to ignore IMs unless the sender is in your Buddy List, the sender is in your Allow List, or the sender correctly answers a question you have predefined.
pork, oidentd, iplog and ocd
A pidgin plugin that allows user to assign global hotkeys (e.g. Ctrl+Alt+g) for togglling buddy list and reading queued message. When "Toggle List" hotkey is enabled, it makes the buddy list hidden from your taskbar and task switcher (similar to ICQ).
Fire is a multi-protocol instant messenger client for Mac OS X based on freely available libraries for each service. Currently Fire handles AOL Instant Messenger®, ICQ®, MSN® Messenger, Jabber, limited IRC, Yahoo!®, and Apple Bonjour communications.
Pidgin Extended Preferences provides additional preferences for Pidgin users. Most notably, it allows you to change the font size of conversation text without changing your theme and to change how quickly or whether the buddy list tooltips appear.
Audible Alerts is a Pidgin (libpurple) plugin to produce notification of an IM audibly. It uses eSpeak, a text-to-speech program, to call out the name of the buddy who IMs you. You can download eSpeak from www.sourceforge.net/projects/espeak
A free Win32 instant messaging client. Smaller, Faster, Easier.
PlanetaMessenger.org is a Instant Messenger with support to all well known instant messenger networks including ICQ,MSN,AIM,Yahoo! and Jabber through a powerfull plugin engine. PlanetaMessenger.org support multiples look and feels, plugins and profiles.
Ayttm is an instant messenger program, supporting various protocols such as MSN, Yahoo, AIM, Jabber, and more. It is the heir of the Everybuddy project, and aims to continue improving the program and addressing its shortcomings.
Current Track plugin will update your Gaim/Pidgin user info, available message or away message, and buddy icon from iTunes, Winamp, RealPlayer, WMP, Musicmatch, MediaMonkey, XMPlay, Yahoo! & Foobar2000 in Windows and XMMS, Rhythmbox, & Amarok in Linux.
Scribis is an instant messenger for the ICQ, MSN, Jabber Network. Scribis runs on SkyOS (www.skyos.org) and uses its native UI called SkyGI.
ARGUVISION - an enterprise class video surveillance system. ARGUVISION is based on distributed Linux or Unix cluster architecture, with up to 1000 cameras per single cluster with aggregation capability and instant access to recorded or live video
Driver support for 3D Controller Hardware. We hope to support SDL Input, DirectInput, and other major controller API's including game consoles and embedded systems.
ReAIM is an AOL Instant Messenger Proxy for iptables-based firewalls. It allows direct connections to be made to hosts behind an address-translating firewall. MSN and Windows Messenger are also supported.
Instant messenger client for GNUstep. Using Björn Giesler's port of the AddressBook framework, Angelos accesses the user's addressbook to produce a buddylist with real names and photos.
AutoProfile is an instant-messanging away message and profile manager that supports highly customized dynamic text. It runs as a plugin that extends the features of the Gaim IM client.
Line-based AIM client and BSD-licensed OSCAR library.
BeGaimed: An Instant Messenger based on Gaim(.sf.net) with the bluetooth capabilaties based on Bemused(.sf.net). Just a messenger for your phone sitting on your sofa using your pc with bluetooth and adsl/cable(or any other internetconnection)
Instant Messenger provides user with an easy way to chat with friends.
Instant Messenger provides user with an easy way to chat with friends from many popular networks in one integrated program. Supported IM networks are ICQ, AOL, Google Talk, Facebook, MSN, IRC, Skype, Gagu-gadu a many more. It is based on great Pidgin Instant Messenger project.
Provide a secure and centrally managed Business Instant Messaging Solution (server/client), including Chat, Voice / Video Conferencing, File Transfer, Emoticons, Dictionary and Tools add-in function etc.
MIACHAT is a system for the Cybiko Handheld Computer that allows users to communicate on AIM wirelessly. Requires 2 Cybikos, one of which must be a Classic